<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
    <meta charset="UTF-8"/>
    <title>文件</title>
</head>
<body>
<form method="POST" enctype="multipart/form-data" action="/upload">
    <p>文件：<input type="file" name="file" /></p>
    <p><input type="submit" value="上传" /></p>
</form>
</body>
</html>